Yes i have ran several hours of linpack when installing on a single SSD.
I have individually tested both SSD.
And now get this. I installed win7 32bit and am up and running currently. Although i cant run 32bit due to ram limits.

System is p9x79 deluxe
3630k
6X4GB gskill 1600
2X 240GB musking SataIII
I have tried HD's instead of SSD's with similiar results
i have tried nvidia and now currently running ATI card.
I have used drivers from CD, but for the most part am using the most current drivers from ASUS
From all my testing which is about 20 hours worth now everything seems to point to an issue with the intel RST driver.